Speaker



FIG. 1 is a front, top, left side perspective view of a speaker, according to an embodiment of the present invention;

FIG. 2 is a rear, bottom, right side perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a left side view thereof;

FIG. 7 is a top view thereof;

FIG. 8 is a bottom view thereof; and,

FIG. 9 is a front, top, left side perspective view thereof in an environment of use.

Broken lines illustrate subject matter outside the boundaries of the claimed invention, and form no part thereof. The environment of use depicted in FIG. 9 forms no part of the claimed invention. 

CLAIM The ornamental design for a speaker, as shown and described. 